Air-line oiler



needle valve 7' threaded into the casing controls'the passage 9 and normally'occupies its closed position to prevent communication between the reservoir 7' and the supply passage P.

into the passageway E.

The operation of the device is as follows: \Vith thepiston O and the throttle valve Q, in the positions illustrated in Figure 1, a portion of the pressure fluid flowing through the passageway E will flow through the passages S and R into the supply passage P thence into the chamber D and acting against the piston 0 will tend to mo ve the piston towards the right hand end of the oil chamber as Figure 1 is viewed. The piston O will thus Y force the oil out of the oil chamber D into the supply passage P from whence it will flow through the passagesU and T into the passage 1) thence through the ports Z into thevalve seat-W and through the nozzle X into the restricted portion K of the passageway E. At this point the oil will intermingle with'the pressure fluid flowing through the passageway and will be carried thereby to the machineintended to be oiled.

' After the oil in the oil chamber D has been consumed, the oil chamber D maybe quickly refilled by merely opening the needle valve 7'.

When this needle valve 0 has been opened, pressure fluid from t-hepassageway E will flow. through the passage t into the reservoir 7' and will force the oil therefrom through the passage q and the supply passage P into the left hand end of the oil chamber D, it being understood that-the throttle valve Q, will then occupya position to cut off communication between the opposite sides of the supply chamber P.

After the oil has been transferred from the reservoir j into the oil chamber D, the throtthe valve Q will be reversed with respect to its former position.

' In thenew positionof the throttle valve Q, oil will flow from the left hand end of the supply passage P through the passages U, T and b, thence through the ports Z in the valve seat W and through the'nozzleX into the passageway E,.and pressure fluid will flow through thepa ssages S and R into the opposite end ofthe supply chamber P rearwardly of the piston O*for actuating said piston in the direction of its initial position.

I claim:

1. An air line oiler, comprising a casing, a wall dividing the easing into a passageway for pressure fluid and a chamber for oil, said casing having passages affording communication between the passageway and the chamber for conveying pressure fluid into the reservoir and oil from the chamber into the passageway, and means in the chamber actuated in alternately opposite directions by pressure fluid for forcing the oil from the chamber into the passageway.

2. An air line oiler, comprising a casing, 21 wall dividing the casing into a passageway for pressure fluid and a chamber for oil, said asing having passages all'ording communication between the passageway and the chamber for conveying pressure fluid into the reservoir and oil from the chamber into the passageway, and means reciprtu-able in the chamber for forcing the oil from either end of the chamber into the passageway.

3. An air line oiler, comprising a casing, a wall dividing the casing into a mssageway for pressure fluid and a chaml'ier for oil, said casing having passages afl'ording communication between the passageway and the chamber for conveying pressure fluid into the reservoir and oil from the chamber into the passageway, a throttle valve controlling the passages, and a piston in the chamber actuated by pressure fluid for forcing the oil from either end of the chamber into the passageway;

4. An air line oiler comprising a casing, 11 wall dividing the easing into a chamber for oil and a passageway for pressure fluid, said passageway having a restricted portion and an enlarged portion, said wall having a supply passage connecting the ends of the chamher, an oil passage leading from the supply passage to the restricted portion of the passageway, an air passage leading from the enlarged portion of the passageway to the supply passage, a piston in the chamber and a throttle valve controlling the passages to seleetively admit pressure fluid into either end of the chamber to actuate the piston for forcing oil from either end of the chamber into the passageway.

5. An air line oiler, comprising a casing, in wall dividing the easing into a chamber for oil and a passageway for pressure fluid, said passageway having a restricted portion and an enlarged portion, said wall having a supply passage eonnecting the ends of the chamber, an oil passage leading from the restricted portion to the supply passage, an air passage connecting the supply passage with the enlarged portion of the passageway, a piston in the chamber, and a throttle valve controlling the passages to admit pressure fluid into the chamber to actuate the piston for forcing oil from the chamber through the supply passage and the oil passage into the pressure fluid chamber and to form a protection for the first said wall. a

7. An air line oiler, comprising a casing, walls dividing the casing into a passageway for pressure fluid, an oil chamber and a storage reservoir for oil, said casing having pasafl'ording communication between the chamber and the passageway, a piston in the chamber actuated by pressure fluid t'or forcing the oil from the chamber into the passageway, and means for effecting the transfer of oil from the reservoir into the chamber.

8. An air line oiler, comprising a casing, a wall dividing the easing into a passageway for pressure fluid and a chamber for oil, means for delivering oil from the chamher to the passageway, a storage reservoir in the casing for oil, a passage in the casing leading from the chamber to the reservoir, a needle valve in the passage for selectively controlling the passage to transfer the oil from the reservoir to the chamber, a passage in the casing leading from the passageway to the reservoir, and and a spring pressed valve in said passage admitting pressure fluid into the reservoir for forcing the oil from the reservoir into the chamber.

9. An air line oiler, comprising a casing, a

wall dividing the casing into a passageway for pressure fluid and a chamber for oil, said wall'having a supply passage connecting the ends oi the chamber and passages leading from the passageway to the supply passage for conveying pressure fluid into the chamber and oil from the chamber into the passageway, a throttle valve in the supply passage for controlling communication between the passages and the supply passage, a piston in the chamber actuated by pressure fluid for forcing oil from the chamber into the passsageway, a storage reservoir in the casing to hold a reserve supply of oil, and means for effecting the transfer of oil from the reservoir into the chamber.

10. An air line oiler, comprising a casing, a wall dividing the easin g into a passageway for pressure fluid and a chamber for oil, said wall having a supply passage connecting the ends of the chamber, passages leading from the passageway to the supply passage tor conveying pressure fluid into the chamber and oil from the chamber into the passageway, a throttle valve in the supply passage for controlling communication between the passages and the supply passage, a piston in the charm ber actuated by pressure fluid iior forcing oil from the chamber into the passageway, a storage reservoir in the casing to hold a reserve supply of oil, means for effecting the transfer of oil from the reservoir into the chamber, and adjustable means associated with the oil passage for controlling the flow of oil into the passageway. V

In testimony whereof I have signed this specification.

ARTHUR E. PETERS. 

